Peacocke, Christopher
clarendon Press, 2007
Buku Teks
edited by Dov M. Gabbay and John Woods
Elsevier, 2004
Buku Referensi
Mates, Benson, author
Oxford University Press, 1965
Buku Teks
I.R. Poedjawijatna, author
Bina Aksara, 1988
Buku Teks
Barker, S. F.
Cornell University Press, 1957
Buku Teks